Hamad Fertilizer Technology 13/05/2021 A. Nature of soil B. Type of crop C. pH of soil D. None of these Related Mcqs: ____________ catalyst is used in the production of urea from CO2 and NH3?A. Vanadium pentoxide B. No C. Alumina D. Nickel... Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of ____________ this is normally not done?A. Increased biuret formation B. High corrosion rate C. Increased cost of equipment D. All A., B. & C.... Iron is not used alone as a catalyst in ammonia synthesis, because___________________?A. Its activity declines rapidly, if heated to above 520°C B. It decomposes ammonia C. It gets oxidised above 500°C D. None of these... During conversion of ammonium carbamate into urea, presence of large excess of water______________?A. Increases the yield of urea B. Adversely affects the yield of urea C. Reduces the evaporator load by diluting the urea solution D. Does not affect the yield of urea... Catalyst used in steam reforming of naphtha is ___________________?A. Bauxite B. Cobalt C. Nickel oxide on alumina support D. Chromium...
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